Lake effect snow is very light and fluffy. It's dry.
The "average weight of fresh snow" is much heavier than the average weight of fresh lake effect snow.
Seems to me, Storm Team 4 is exaggerating the weight problem.
A news station exaggerating the severity of an upcoming storm? The hell you say.
None of that matters, the weight of snow is fairly consistent, lake affect just means the snow developed by cold air passing over a lake as opposed to moving in a storm over land.